Brake-shoe.



No. 822,925. Y PATENTE) UE 12, 1906. P. P. COLLIER.

. BRAKE SHUB.

APPLIUATION HLED APR. 1. 1905.

No. 822,925, PATENTED JUNE 12, 19%.Y

T. P. emma.

BRAKE SHE.

APPLIUATIUN ruim PL 1, 1905.

3 SHEETS-#HEBT 3v ments in Brake-Shoes, of which the fol owingl FRANK P.COLLIER, OF WiLMETTE, ILLINOIS.

BRAKE-SHOE.

ne. ceases.

Bpecication of Letters Patent.

Patented June 12, 1906.

Hmmm naa Aprila-19st. snm No. 263.211.

To all whom it may concern; V,1.,

Be it known that I, FRANK P. CoLLmR a dem ofthe United states, residingn. wilmette, in the count of Cookand State of Illi nois, have inventenewr and usefui Im roveis aspeciiieation.

The ob 'ect of this invention is to strengthen a brake-s oe, to reducethe liability of transl-4 verse fracture, and to bind the parts of theshoe together, so that they will not become detached in case offracture.

The invention can be embodied in carshoes and iocomotive-shoes and insolid and composite shoes of the many dierent known in the art, and inthedrawingsY I aveV shown several embodiments of the invention,

referring to which" Fi e 1 is a planview of the strengthening-p ateforafsolidcar-shoe. Fig'. 2 isalongitudinal sectionalv view of a sohdcar-shoe embodying the invention. Fig'. Bisasimilar view of a solidlocomotive-shoe embodying the invention.

tively. Fig. 6 is a pian view of a single p atecovering substantiallythe entire backo a compositelocomotiveshoe. Y7 isla longitudinalsectional view of a shoe having the back shown in Fig. 6 and taken onthe line 7 7 of Fig. 6. Fig. 8 isa transverse sectionai view on the line8 8 of Fig. 7. isa similar view without the inserts. F1 10 and 11 showdxeiavviiY iates which may e used on a ioern'netivn i' oe in pllace ofthe single piste shown in Fig.. 6. 'g. 12 is a iongitudina sectionalview of a shoe made with the two pistes shown inv Figs. 10 and 11. Fig.A13 is a transverse sectional view on the iine 13 13 of Fi 12. 14 is asimilar sectional view wit out the inserts.` Fig. 15 shows a corrugatedplate on each side of the attaching-'lug of a car-shoe.

lReferring' 'iiilst 1, 2, alxldht, I exi; p oy astren -p ate 15, w c maygenerically as .comigated, meanmg thereby a plate which iswrinkled or?uckered, so that parts thereof will lie in di erent planes. This plateis shorter and narrower than the bod 16 of the shoe and when the body iscast' ereon the metal will iiow over th'e depressed parts 15 of theplate, on the outer face thereof, as indicated h 16', to lock the plateand body permanen to ether. I preferably make the plate so at t eattaching-lug 1S of the car-shoe, Fig. 2, will be Vshown another form ofcorru ate Figs. 4 and 5 are tranverseV sectional views on the lines 4 4and 5 5 of Figs 2 3.,

Y'not carry formed above a depression in the plate, and

I also prefer that the ends of the late shouid be depressed beneath theend ugs 19 and guides 20. The side edges of the plate may e cut out at21, Fig. 1, to permit a larger quantity of the body metal to form thecom neetion between the attaching-lug and the body. For economg I preferto use a le plate, Fig. 1, in soli car-shoes, Fig. 2, ri I may use asingle plate with solid locomotiveshoes, or I may use two plates in thelocomotive-shoes one of these plates 22 be' located at the back oi theanged part o the shoe and the other late 23 bemg located backof thatpart of t e shoe which contacts with the tread of the wheel, Fig. Y5.

In Figs. 6 to 14 of the drawings I have plate in which the plate isslitted an the corrugations are staggered-that is to say, there arealternate ralsed and depressed pai-ts in a Y transverse section of theplate.` .In Fi 6 to 9 I have shown a single plate of this c aracter forcovering ap roximately the entire back of Ya locomotive-s oe, andreferring thereto it will be observed that the piste 24 has e1- ternateraised arts 25 andt de ressed parte 26. If a solid odlyar is east on:style of a corrugated plate., t e metal wii ow up over the depressedparts in the same manner referredrto in connection with Figs. 1 to 5. Imay rst east inserts 27 on some or ali of these depressed parts 26 andafterward cast the body 28 around the inserts and against' the ate thebody metal interlockin with the dl1 s g epressed parte 26 of the platewhich do the inserts. The inserts are dovetailed, so that the ybody willbe interioclmd` therewith, and h reason of the fact that the inserts arelockeV to the back and the bodyis locked to the back and also to theinserts a very rigid and secre union of the parts is obtained. Theinsert metal ows up over the depressed parte of the back, as in cated by27 Fi 7, and the body metal ows up over those epressed parte which donot carry inserts, as indicated by 27, Fig. 9.

In Figs. 10 to 14, inclusive, I have shown two pistes for use in alocomotive-shoe in the same manner shown in Figs. 3 and 5, butconstructed in the manner shown in Fig. 6, with sta gered andalternating raised and depresse parts. The plate 29, Fig. 10, is locatedat the back of the iianged part ofthe shoe, and the plate 80, 11, islocated at IOC IIO

tacts with the tread of the wheel. These two plates-may vary more orless in size, as desired, and they are each rovided with depressed parts31 and raise arts 32, and the lnserts are cast on some or al of the deressed parts in the manner previously descri ed.

I may embody this invention also in the shoe covered by my Patent N o.787,079, dated A ril 11, 1905, as shown in Fig. 152 Here the two plates34 are corrugated like the plate 15, Figs. 1, 2; but I might also makethese plates like the plate 24, Fig. 6, to carry inserts. I refer todovetail some or all of the edges o the plate, so that the body of theshoe will lock securely with the late, and in locomotive-shoes I preferto stri e up a hook 35, Figs. 6, 7, 11, and 12, to form a lining and tostren thenl the attaching-lug 36.

In so id shoes of cast-iron or other metal and in those shoes which-have chilled sections I prefer to use the simpler form of lateillustrated lin Figs. 1 to 5, because it is ess expensive than the plateshown in Figs. 6

Vto 14 but when the shoe contains inserts about whichthe body is cast itis desirable` to use the plate illustrated in Figs. to 14 in or` derthat the inserts may first be locked to the plate before the body iscast thereon. The slitted plate shown in Figs. 6 to,14may be used in thekind of shoes shown in Figs. 1 to 5, if desired. I have shown only twoforms of a corrugated plate; but I ma use ,other kinds of corrugatedplates-in whic the corruations extend diagonally across the plate orlubngitudinally thereof or in other ways.

A brake-shoe embodying my invention is strong and substantial and willenable the shoe to wear down to the plate itself, and if the body of theshoe should fracture the late will hold the fractured parts togetherandpprevent them from stripping off or otherwise becoming detached.

Without limiting myself to the exact construction and arra ement ofparts herein shown and describe what I claim, and desire to secure bLetters Patent, is

1. A brake-s oe having a transversely-corrligated plate at or adjacentto the back of the s oe.

2. A brake-shoe having a plate at or adj acent to its back, said platebeing slitted and the parts between said slits remaining connectedintegrally at the ends with the plate and being bent outward.

3. A brake-shoe having a plate at or adj acent to its back, said platebeing provided with a plurality of slits arranged in pairs and the partlocated between each pair of slits remaining connected integrally at itsends with the plate and being bent outward.

4. A brake-shoe having a plate provided with alternate and staggeredraised and depressed arts at or adjacent to its back.

5. A rake-shoe comprising a plate at or adjacent toits back, said platebeing provided with a plurality of slits and `the, parts brtween saidslits'being bent to provldecorrugations inthe plate.

6. A brakeshoe com rising mplate'at or adjacent yto its back, saidplatefbeing slitted and provided with alternate Vandstaggered raise anddepressedparts.

7 A brakeshoecomprisinga transverselycorrugated plate, and a body-castonsaid plate, the bod metal :being permitted to flow into the epressedpartson the outer face of the plate-to lock the plate and body together.

8. A brake-shoe comprising acorrugated plate, a plurality of insertscarried by said plate, and a body castlonsaid inserts -and plate.

9. A brake-shoe comprising a slitted plate having parts `thereofdepressed, inserts on said depressedr parts, and a body cast on saidinserts and plate.

10. A brake-shoe comprising a plate-having alternate raised anddepressed parts, inserts cast on said depressedparts and extendingthereover to form a llocg connection with the plate, and a body cast onsaid inserts an'd plate.

11. Abrake-shoe compris'- aslitted plate having alternate and stagefelalraised-and-depressed arts, dovetaile inserts caston-some of saidepressed parts and-extendingthereover to form alocking connectionwith-the plate, and a body cast onsaid inserts and plate and extendingover the other` depressed parts.

12. A brakeshoe consisting ef a steel back having a series of U-shapedstraps struck down therefrom and a castsmetal body joined to the back bythe metal over and around the straps.

FRANK P.. COLLIER.

Witnesses HYMAN Lewis. WM. O. BELT.

IOO

